2012 Fiscal Year Final Research Report
An efficient removal of heavy metal ions in water by photocatalysis
| Project/Area Number |
23651066
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
SATO Kazunori 長岡技術科学大学, 工学部, 教授 (20143828)
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| Co-Investigator(Renkei-kenkyūsha) |
TEOH Wahtzu 長岡技術科学大学, 工学部, 助教 (10452088)
NISHIYAMA Hiroshi 長岡技術科学大学, 工学部, 助教 (50303186)
SAITO Nobuo 長岡技術科学大学, 工学部, 准教授 (40313572)
INOUE Yasunobu 長岡技術科学大学, 特任教授 (30016133)
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| Project Period (FY) |
2011 – 2012
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| Keywords | 光触媒 / 無機イオン交換体 |
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| Research Abstract |
The photoelectrodeposition effect of titanium oxides(Ti0_2，BaTi_40_9) combined with α-FeOOH fine particles on the removal of lead ions has been investigated. These matelials showed a high photoelectrodeposition ability for lead ions tmder the photo inadiation. The present result indicates that the coexistence of fine α-FeOOH fine particles with the oxide particles contributes to an efficient separation of holes and electrons generated by the photo irradiation. The high-resolution scanning electron microscopic observation revaled that fine α-FeOOH palticles supported on the surface of the oxide particles are effective for the charge separation between holes and electrons. A possible mechanism for the efficient removal of hazardous heavy metal ions dissolved in an aqueous environment is presented
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